Institution: | 1. Department of General Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, Guangdong Province, China 2. Zhongshan Medical College, Sun Yat-Sen University, Guangzhou 510089, Guangdong Province, China 3. Department of Gastrointestinal and Pancreatic Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, Guangdong Province, China |